RBWEIR GATES

ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

OBXC 09-2011RB-1

The Orbinox model RB Weir Gate is designed fordownward opening applications where a more accurateflow control is required. The water flows over the top of theslide permitting a constant upstream water elevation. TheRB model weir gate is available from sizes 6” x 6” (150mmx 150mm) up to 80” x 80” (1200mm x 1200mm).The sealing system is incorporated on 3 sides (both lateralsand bottom), resulting in a substantially watertight sealwithout the need of wedges on the gate. This unique designachieves bidirectional performance (seating and unseatingpressure conditions). Additionally, a 4 side sealing systemis available.The leakage rate on the model RB is lower than themaximum allowable recommended by AWWA (C513-05)under normal conditions. Orbinox also designs andmanufactures the RB Weir Gate in larger sizes, for moredemanding service conditions and maintains a leakage ratebelow the allowable standard from AWWA. For moreinformation please contact an Orbinox representative.

The RB Weir Gate (3 side sealing) is manufactured ingeneral accordance to:

• AWWA C513-05• DIN 19569• BS 7775

For the four side sealing system, the gate is manufactured ingeneral accordance to AWWA C561-04.The standard RB model is manufactured in stainless steelwhich has a higher corrosion resistance in manyapplications which results into a longer life cycle with littleor no maintenance. Other materials of construction areavailable upon request, such as AISI 904L, Duplex stainless,etc.

GENERAL DESCRIPTION

DESIGN CONSTRUCTION

MODEL

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

Model Seating Head Pressure Unseating Head Pressure

RB - 3 Side Sealing6” x 6” - 48” x 48”

(150mm x 150mm - 1200mm x 1200mm)Slide Height Slide Height

RB - 3 Side Sealing52” x 52” - 80” x 80”

(1300mm x 1300mm - 2000mm x 2000mm)Slide Height Slide Height

RB - 4 Side Sealing6” x 6” - 40” x 40”

(150mm x 150mm - 1200mm x 1200mm)33 feet of water column

(10 meters of water column)33 feet of water column

(10 meters of water column)

RB - 4 Side Sealing44” x 44” - 80” x 80”

(1300mm x 1300mm - 2000mm x 2000mm)

20 feet of water column(6 meters of water column)

20 feet of water column(6 meters of water column)

Seating / Unseating Design Head:

DESIGN FEATURES

RBWEIR GATESMODEL

OBXC 09-2011RB-2ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

The design and sealing system of the RB Weir Gate model issimilar to the MU Slide Gate model. The main designfeatures are:• Stainless steel fabricated modular design allows for bothOpen Frame and Self Contained configurations. • Option of Rising or Non-Rising Stem configurations.• Option of 3 side or 4 side sealing configurations.• Suitable for actuation with manual, electric, pneumatic orhydraulic actuators.• Self adjusting seal design.• Orbinox Weir Gates are completely factory assembledand tested eliminating the need for on site adjustment.

Allowable Leakage:The leakage rate on the model RB (3 side sealing) is lowerthan the maximum allowable defined by AWWA undernormal conditions for both seating an unseating headpressures:• AWWA standard leakage rate: 0.1 USGPM per foot ofperimeter (1.24 l/min per meter).• ORBINOX standard leakage rate: 0.05 USGPM per footof perimeter (0.62 l/min per meter) under seating headconditions and 0.1 USGPM per foot of perimeter (1.24l/min per meter) under unseating head conditions up to 20feet (6m) of head pressure.

Seating and Unseating Design Head:The RB model is designed to withstand a water pressureequal to the height of the slide and can withstand seatingand unseating pressure conditions (bidirectional).Additionally, Orbinox offers a 4 side sealing system forapplications having higher water head pressures.

Seal design:The RB model has a unique self-adjusting seal design,ensuring a substantially watertight performance.TheUHMWPE guides ensure no metal-to-metal contact reducingthe friction during operation and extends seal life.

Seal Design: sizes 6”x 6” (150mm x 150mm) to 48”x 48” (1200mm x 1200mm)

3 Side Sealing

SIDE SEAL BOTTOM SEAL

SIDE SEAL BOTTOM SEAL

OBXC 09-2011RB-3ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

Seal Design: sizes 52”x 52” (1300mm x 1300mm) to 80”x 80” (2000mm x 2000mm)

RBWEIR GATESMODEL

Seal Design: sizes 6”x 6” (150mm x 150mm) to 48”x 48” (1200mm x 1200mm)

TOP SEALThe side and bottom seal configuration for the RB-4 sidesealing model is the same as for the RB 3 Side Sealing modelup to 48” x 48”.

Seal Design: sizes 52”x 52” (1300mm x 1300mm) to 80”x 80” (2000mm x 2000mm)

4 Side Sealing

SIDE SEAL TOP SEAL BOTTOM SEAL

OBXC 09-2011RB-4ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

Note: For materials other than the above, please consult an Orbinox representative.

ITEM DESCRIPTION MATERIAL 1 Frame Stainless Steel ASTM A-240 / Type 304L or 316L2 Slide Stainless Steel ASTM A-240 / Type 304L or 316L3 Guides Ultra High Molecular Weight Polyethylene (UHMWPE) ASTM D-40204 Seal EPDM5 Seal Retainer Stainless Steel ASTM A-240 / Type 304L or 316L6 Frame Guide Stainless Steel ASTM A-240 / Type 304L or 316L7 Stem Stainless Steel ASTM A-240 / Type 303 (standard), other on request8 Stem Nut Bronze9 Yoke Stainless Steel ASTM A-240 / Type 304L or 316L10 Handwheel Cast Iron11 Stem Protector Carbon Steel/Clear Polycarbonate

Sizes 6”x 6” (150mm x 150mm) to 48”x 48” (1200mm x 1200mm)

STANDARD MATERIALS OF CONSTRUCTION

OBXC 09-2011RB-5ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

Note: As standard, Orbinox Weir Gates include a manual operator (handwheel or bevel gear).

ITEM DESCRIPTION MATERIAL (standard)1 Frame Stainless Steel ASTM A-240 / Type 304L or 316L2 Slide Stainless Steel ASTM A-240 / Type 304L or 316L3 Guides Ultra High Molecular Weight Polyethylene (UHMWPE) ASTM D-40204 Seal EPDM5 Seal Retainer Stainless Steel ASTM A-240 / Type 304L or 316L6 Stem Stainless Steel ASTM A-240 / Type 303, other on request.7 Stem Nut Bronze8 Yoke Stainless Steel ASTM A-240 / Type 304L or 316L9 Stem Coupling Stainless Steel ASTM A-240 / Type 304L or 316L10 Motor*

Sizes 52”x 52” (1300mm x 1300mm) to 80”x 80” (2000mm x 2000mm)

STANDARD MATERIALS OF CONSTRUCTION

OBXC 09-2011RB-6ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

The following drawings show the most common mountingoptions for RB Weir Gates. For other mounting options, ple-ase consult an Orbinox representative.

All Orbinox actuators can be yoke or pedestal mounted,below are some examples of the most common types.

Various types of actuators as shown above:

(A) Handwheel on inclined floor stand.(B) Handwheel on straight floor stand.(C) Gear operator on straight floor stand.(D) Electric actuator on straight floor stand.(E) Hydraulic or pneumatic actuator.(F) 2” square nut operator (For Non-Rising stem).(G) Yoke mounted handwheel.(H) Yoke mounted gear and crank.

(crank installed in 2” square nut).

Accessories:

• Mechanical stops• Actuator manual overrides• Locking devices• Solenoid valves• Positioners• Limit / Proximity switches

Sizes 6” x 6” (150mm x 150mm) to 48” x 48” (1200mm x 1200mm)

Sizes 52" x 52" (1300mm x 1300mm) to80" x 80" (2000mm x 2000mm)

(B)

(C)(D)

(F)

(A)

(G)(H)

(E)

MOUNTING OPTIONS ACTUATORS

THIMBLE MOUNT

WALL MOUNT

OBXC 09-2011RB-7ORBINOX reserves the right to change specifications without notice.

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ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

INSTALLATION, OPERATION AND MAINTENANCE (IOM)This section briefly describes the installation, operation andmaintenance of RB Weir gates. For more detailedinformation please refer to the “IOM Manual”.

Installation:Orbinox RB Weir Gates are installed by means of AnchorBolts. Depending on the size and working conditions theyshall be either of the mechanical or chemical type. Fordetailed information about the type, size and quantity of therequired anchor bolts for installation, please refer to thenotes on the “General Arrangement Drawing”.

In order to avoid leakage between the concrete wall and theframe, Orbinox recommends the use of construction sealantequivalent to Sikabond (200ml per meter of openingperimeter).

The minimum concrete strength shall be 3,000 PSI(20.7 MPa). The tolerance of the concrete construction(flatness, levelness and plumbness) shall be inaccordance to ACI 117-10 standard.

Maintenance and Operation:The Orbinox RB Weir Gates need practically nomaintenance. The stem should be kept lubricated and sealsshould be replaced if damaged. The RB Weir Gate is closedby applying a clockwise rotation.

OBXC 09-2011RB-8ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

SIZES: 6” x 6” (150mm x 150mm) to 48” x 48” (1200mm x 1200mm)

The following drawings show the most common frame and stem configurations and their dimensional chart. Note that any frame(Open and Self Contained), stem (Rising and Non Rising) and actuator combination can be manufactured for RB Weir Gates.

RB - RISING STEM - SELF CONTAINED - DIMENSIONS

OBXC 09-2011RB-9ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

SIZES: 6” x 6” (150mm x 150mm) to 48” x 48” (1200mm x 1200mm)

RB - RISING STEM - OPEN FRAME - DIMENSIONS

OBXC 09-2011RB-10ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

SIZES: 6” x 6” (150mm x 150mm) to 48” x 48” (1200mm x 1200mm)

RB - NON RISING STEM - SELF CONTAINED - DIMENSIONS

OBXC 09-2011RB-11ORBINOX reserves the right to change specifications without notice.

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ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

SIZES: 6” x 6” (150mm x 150mm) to 48” x 48” (1200mm x 1200mm)

RB - DIMENSIONAL CHART (3 Side Sealing)

OBXC 09-2011RB-12ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

6” x 6” 13 1/16 11 7/8 6 3 8 3/8 11 13/16 2 5/16 1 11/16

8” x 8” 15 1/16 13 7/8 8 4 10 3/8 13 13/16 2 5/16 1 11/16

10” x 10” 17 1/16 15 7/8 10 5 12 3/8 15 13/16 2 5/16 1 11/16

12”x 12” 19 1/16 17 7/8 12 6 14 3/8 17 13/16 2 5/16 1 11/16

14” x 14” 21 1/16 19 7/8 14 7 16 3/8 19 13/16 3 7/16 1 3/4

16” x 16” 23 1/16 21 7/8 16 8 18 3/8 21 13/16 3 7/16 1 3/4

18”x 18” 25 1/16 23 7/8 18 9 20 3/8 23 13/16 3 7/16 1 3/4

20” x 20” 27 1/16 25 7/8 20 10 22 3/8 25 13/16 3 7/16 1 3/4

24” x 24” 31 1/16 29 7/8 24 12 26 3/8 29 13/16 3 7/16 1 3/4

28” x 28” 35 1/16 33 7/8 28 14 30 3/8 33 13/16 3 7/16 1 3/4

30”x 30” 37 1/16 35 7/8 30 15 32 3/8 35 13/16 3 7/16 1 3/4

32”x 32” 39 1/16 37 7/8 32 16 34 3/8 37 13/16 3 7/16 1 3/4

36”x 36” 43 7/8 41 7/8 36 18 38 3/8 42 5/8 5 13/16 2 5/16

40”x 40” 47 7/8 45 7/8 40 20 42 3/8 44 5/8 5 13/16 2 5/16

42”x 42” 49 7/8 47 7/8 42 21 44 3/8 48 5/8 5 13/16 2 5/16

44”x 44” 51 7/8 49 7/8 44 22 46 3/8 50 5/8 5 13/16 2 5/16

48”x 48” 55 7/8 53 7/8 48 24 50 3/8 54 5/8 5 13/16 2 5/16

SIZE(Channel Widthx Slide Travel) W

H Min(Self-

contained)

H(OpenFrame) H1 H2 D L C

Note: “H1” is equal to half of the slide travel. If the width of the slide is greater than 4 times the height then H1 is equal to slide travel.

For dimensions other than above, please contact an Orbinox representative. These dimensions are for information only. Do not use for installation or submittal purposes.

SIZES: 52”x 52” (1300mm x1300mm) to 80”x 80” (2000mm x 2000mm)

RB - NON RISING STEM -SELF CONTAINED- DIMENSIONS

RBWEIR GATESMODEL

OBXC 09-2011RB-13ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

SIZES: 52”x 52” (1300mm x1300mm) to 80”x 80” (2000mm x 2000mm)

RB - DUAL STEM - RISING STEM - SELF CONTAINED - DIMENSIONS

OBXC 09-2011RB-14ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

Note: “H1” is equal to half slide travel. If the width of the slide is greater than 4 times the height, then H1 is equal to the slide travel.

For dimensions other than above, please contact an Orbinox representative.These dimensions are for information only. Do not use for installation or submittal purposes.

RB - DIMENSIONAL CHART (3 Side Sealing)SIZES: 52” x 52” (1300mm x1300mm) to 80” x 80” (2000mm x 2000mm)

OBXC 09-2011RB-15ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

52” x 52” 61 5/8 57 7/8 52 26 54 15/16 60 3/8 6 5/8 1 11/16

56” x 56” 65 5/8 61 7/8 56 28 58 15/16 64 3/8 6 5/8 1 11/16

60” x 60” 69 5/8 65 7/8 60 30 62 15/16 68 3/8 6 5/8 1 11/16

64”x 64” 73 5/8 69 7/8 64 32 66 15/16 72 3/8 6 5/8 1 11/16

68” x 68” 77 5/8 73 7/8 68 34 70 15/16 76 3/8 6 5/8 1 3/4

72” x 72” 81 5/8 77 7/8 72 36 74 15/16 80 3/8 6 5/8 1 3/4

76”x 76” 85 5/8 81 7/8 76 38 78 15/16 84 3/8 6 5/8 1 3/4

80” x 80” 89 5/8 85 7/8 80 40 82 15/16 88 3/8 6 5/8 1 3/4

SIZE(Channel Widthx Slide Travel) W

H Min(Self-

contained)

H(OpenFrame) H1 H2 D L C

GENERAL CONDITIONS

The equipment provided under this section shall befabricated, assembled, erected, and placed in properoperating condition in full conformity with the drawings,specifications, engineering data, instructions andrecommendations of the equipment manufacturer unlessexceptions are noted by the engineer.Gates and operators shall be supplied with all the necessaryparts and accessories indicated on the drawings, specifiedor otherwise required for a complete, properly operatinginstallation, and shall be the latest standard product of amanufacturer regularly engaged in the production offabricated gates.Gates supplied under this section shall be Model RB StainlessSteel Weir Gates as manufactured by ORBINOX.

GOVERNING STANDARDS. The gates specified in thissection shall be manufactured in general accordance toAWWA C513, latest edition.For the 4 side sealing version,all gates specified in the section shall be manufactured ingeneral accordance to AWWA C561, latest edition.

QUALITY ASSURANCE. The manufacturer shall haveexperience in the production of substantially similarequipment, and shall show evidence of satisfactoryoperation in at least 50 installations. The manufacturer'sshop welds, welding procedures and welders shall bequalified and certified in accordance with the requirement ofthe latest edition of ASME, Section IX.

SUBMITTALS. The manufacturer shall submit for approvalby the purchaser, drawings showing the principaldimensions, general construction and materials used in thegate and lift mechanism.

PERFORMANCE

LEAKAGE. RB Weir Gates shall be substantially watertightunder the design head conditions.Under the design seatinghead, the leakage shall be 0.05 U.S. gallon per minute perfoot (0.62 l/min per meter) of seating perimeter or better.Under the design unseating head the leakage shall be 0.1U.S. gallon per minute per foot (1.24 l/min per meter)ofseating perimeter or better.

4 SIDE SEALING: LEAKAGE. For unseating headsgreater than 20 feet (6m), the allowable leakage shall bethe rate per foot (per meter) of perimeter specified by thefollowing equations or better:Maximum allowable leakageGallons per minute per meter of perimeter:= 0.10 + (0.0024 x (unseating head in feet - 20))Liters per minute per meter of perimeter:=1.24 + (0.101 x (unseating head in feet - 6.1))Example: If we have a gate with 30 feet head, the leakage for the unseatinghead will be:0.10 + (0.0025 x (30 –20)) = 0.125 US gpm/ft of perimeter.

DESIGN HEAD. The Weir shall be designed to withstandthe design head shown in the schedule.

PRODUCT (WEIR GATE)

GENERAL DESIGN. Gates shall be either self-contained ornon self-contained of the rising stem or non-rising stemconfiguration as indicated on the gate schedule. Allcomponents of the gate shall be designed to withstand themaximum head indicated on the drawings in both seatingand unseating directions and the maximum output of theactuator.

FRAME. The gate frame shall be constructed of structuralmembers or formed plate welded to form a rigid one-pieceframe. The frame shall be suitable for wall mounting or wallthimble mounting (4 - sided sealing only).

The frame configuration shall allow the replacement of theseals without removing the gate frame from the concrete.

The design stress shall not exceed the lesser of 50% of theyield strength or 25% of the ultimate strength of the materialsfor maximum load conditions.

STANDARD SPECIFICATIONS

OBXC 09-2011RB-16ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

Model RB Weir Gate 6” x 6” (150mm x150mm) to 80” x 80” (2000mm x 2000mm)

STANDARD SPECIFICATIONS

RBWEIR GATESMODEL

PRODUCT (WEIR GATE)

SLIDE. The slide shall consist of a flat plate reinforced withformed plates or structural members to limit its deflection to1/360 of the gate's span under the design head. Theminimum thickness of the slide shall be 1/4”.

The design stress shall not exceed the lesser of 50% of theyield strength or 25% of the ultimate strength of the materialfor maximum load conditions.

GUIDES AND SEALS. The guides shall be made ofUHMWPE (ultra high molecular weight polyethylene) andshall be of such length as to retain and support at least half(1/2) of the vertical height of the slide in the fully openposition (downward).

Seals shall be made of EPDM and the design shall be ableto obtain the same leakage rate on both seating andunseating head pressure as per the schedule. The sealsystem shall maintain efficient sealing in any position of theslide and allow the water to flow only through the openedpart of the slide.

OPERATORS AND STEM

STEM AND COUPLINGS. The operating stem shall be ofstainless steel designed to transmit in compression at least 2times the rated output of the operating manual mechanismwith a 40 lbs (178 N) effort on the crank or hand wheel.

The stem shall have a slenderness ratio less than 200. Thethreaded portion of the stem shall have machined cut threadsof the Acme type or equivalent.

Where a hydraulic, pneumatic or electric operator is used,the stem design force shall not be less than 1.25 times theoutput thrust of the hydraulic or pneumatic cylinder with apressure equal to the maximum working pressure of thesupply, or 1.25 times the output thrust of the electric motorin the stalled condition.

The stem extension shall be made of extension tubes andjoined to the stem by a solid coupling. The couplings shall beof greater strength than the stem.

As a general rule, gates having a width greater than twotimes their height shall be provided with two liftingmechanism connected by a tadem shaft.

STEM COVER. Rising stem gates shall be provided with acarbon steel or a clear polycarbonate stem cover. The clearpolycarbonate stem cover shall have a cap andcondensation vents and a clear position indicating tape. Thetape shall be field applied to the stem cover after the gatehas been installed and positioned.

LIFTING MECHANISM. Manual operators of the typeslisted in the schedule shall be provided by the gatemanufacturer.

All bearings and gears shall be totally enclosed in a weathertight housing. The pinion shaft of the crank-operatedmechanisms shall be constructed of stainless steel andsupported by roller or needle bearings.

Each manual operator shall be designed to operate the gateunder the maximum specified seating and unseating headsby using a maximum effort of 40 lbs (178 N) on the crankor hand wheel, and shall be able to withstand, withoutdamage, an effort of 80 lbs (356 N).

The crank shall be removable and fitted with a corrosion-resistant rotating handle. The maximum crank radius shallbe 15 inches (381mm) and the maximum hand wheeldiameter shall be 26 inches (650mm).

Electric motors shall meet AWWA 542-09 Standard.Pneumatic and hydraulic actuators shall meet AWWA 541-08 Standard.

YOKE. Self-contained gates shall be provided with a yokemade of structural members or formed plates. The maximumdeflection of the yoke shall be 1/360 of the gate's span.

OBXC 09-2011RB-17ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

Gate IdentificationSize (Channel Width x Slide Height)Invert ElevationOperating Floor ElevationSeating HeadUnseating HeadMounting Type

• CM: Concrete Wall Mounted• WTM: Wall Thimble Mounted• RCM: Round Concrete Wall Mounted

Frame configuration• SF: Self Contained • OF: Open Frame

Stem configuration• RS: Rising Stem• NRS: Non Rising Stem

SCHEDULEPart MaterialFrame, Gate, Stainless Steel ASTM A-240 /Seal Retainer Type 304L or 316Land YokeGuides Ultra High Molecular Weight

Polyethylene (UHMWPE) ASTM D-4020Seal and Bottom Seal EPDMStem Stainless Steel ASTM A-240 /

Type 303 or 316Stem Nut BronzeStem Protector Polycarbonate ASTM D-3935 or

Carbon Steel ASTN A-501Hardware ASTM F593 and F594 GR1 for 304L

Frame and GR2 for 316L Frame

MATERIALS

EXECUTION

INSTALLATION:Gates and appurtenances shall be handled and installed inaccordance with the manufacturer’s recommendations.

STANDARD SPECIFICATIONS

OBXC 09-2011RB-18ORBINOX reserves the right to change specifications without notice.

www.orbinox.com

ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

WEIR GATE DESIGN (Size= Channel Width x Slide Height)

mm 3 Side Sealinginch 4 Side Sealing

Channel Width: Channel Height:Slide Height:Slide Travel:Seating Water Head:Unseating Water Head:

FRAME AND STEM CONFIGURATIONNon Rising Stem (NRS)Rising Stem (RS)

Open Frame + ExtensionClosed frame + ExtensionClosed Frame (with extended frame)

ACTUATORSHandwheelCrank (w/ B.Gear and 50 mmSqr. Nut)2” Square Nut (NRS Only)Bevel GearElectric MotorPneumatic CylinderHydraulic Cylinder

MATERIALSFrame & SlideStemExtensionFloor StandSealStem Cover

RB WEIR GATE SELECTION FORM

Name: Signature:

Units:

Actuator Mounting:Frame Mounted (a)Inclined Floor Stand (b)Straight Floor Stand (c)Wall Bracket (for 2”Sqr.Nut) (d)

304L SS303 SS304L SSCarbon SteelEPDMCarbon Steel

Customer:Order Number:

Tag No.: Date:Qty.:

REMARKS316L SS316 SS316L SS316L SS

Clear Polycarbonate

Other:Other:Other:Other:Other:

Position Indicator:(For RS Only)Mylar TapeLimit SwitchProximity Switch

OBXC 09-2011RB-19ORBINOX reserves the right to change specifications without notice.

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ORBINOX CANADA, ORBINOX USA, ORBINOX BRAZIL, ORBINOX SPAIN, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

RBWEIR GATESMODEL

(a) (b) (c) (d)